For God so loved the world that he gave his one and only Son,[a] that whoever believes in him shall not perish but have eternal life. -
John 3:16
We love because he first loved us. If anyone says, "I love God," yet hates his brother, he is a liar. For anyone who does not love his brother, whom he has seen, cannot love God, whom he has not seen. –
1 John 4:19-20
This is how we know who the children of God are and who the children of the devil are: Anyone who does not do what is right is not a child of God; nor is anyone who does not love his brother. -
1 John 3:10